Foldable Antenna Grounding Near Hinges Using Conductive Shielding
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Solution Overview
Problem
Electronic devices with non-conductive housings and foldable designs face challenges in securing a stable ground for antennas and shielding noise from adjacent components, leading to deteriorated radiation performance and communication issues.
Innovation Solution
Incorporating conductive members and plates to electrically connect antenna patterns and PCBs, forming a grounded network that shields noise and electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a non-conductive housing material is used, then the external shape can be flexibly designed, but the antenna ground cannot be securely established
Solution Approach 1:
A conductive member is introduced as an intermediary between the non-conductive housing and the antenna pattern to establish the ground connection. The conductive member is electrically connected to both the antenna pattern and the housing, enabling ground establishment without requiring the housing material itself to be conductive.
2Area of stationary object
If the antenna is disposed adjacent to a hinge part, then space utilization is improved, but noise from the PCB deteriorates antenna radiation performance
Solution Approach 1:
A conductive member is positioned between the antenna pattern and the PCB to act as a shield. This intermediary structure blocks noise and electromagnetic interference from the PCB from reaching the antenna, protecting the antenna's radiation performance while allowing the antenna to be disposed adjacent to the hinge part for efficient space utilization.
3Reliability
If conductive members are added to secure ground and shield noise, then antenna performance is improved, but device complexity increases
Solution Approach 1:
The conductive member is designed to perform multiple functions simultaneously: it provides the ground connection for the antenna pattern, shields the antenna from noise generated by the PCB, and can be integrated with the housing structure. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving both grounding and noise shielding.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances antenna grounding and reduces noise interference, improving radiation performance and data transmission capabilities in electronic devices.
Implementation Method 1
a conductive member electrically connected to the first antenna pattern; and a first conductive plate electrically connected to at least a portion of the conductive member
Implementation Method 2
shielding noise transferred from electronic components disposed around the antenna pattern
Data Source
AI summary
An electronic device is provided, which includes a first housing, a display unit included in the first housing, a second housing, and a hinge configured to couple the first housing and the second housing, wherein the display unit comprises a first printed circuit board (PCB), a first antenna pattern at least partially disposed at a first side surface of the first housing adjacent to the hinge, a conductive member electrically connected to the first antenna pattern, and a first conductive plate electrically connected to at least a portion of the conductive member, and wherein the first antenna pattern is coupled to at least a portion of the conductive member using a first fastening member and a second fastening member